Amalgamator and concentrator for ores and tailings.



J. R. HARRISON.

AMALGAMATOR AND CONGENTRATOR FOR ORES AND TAILINGS.

APPLICATION FILED MAY 9, 1906.

Patented Jan. 12, 1909.

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. R. HA'RRISGN.

AMALGAMATORAND GONGENTRATOR FOR ORES AND TAILINGS.

APPLICATION TILED MAY 9, 1906.

Patented Jan. 12, 1909.

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. 'J. R. HARRISON. AMALGAMATOR AND 'OONGENTRATOR FOR, ORES AND TAILINGS.

APPLICATION FILED MAY 9, 1906.

Patented Jan. 12, 1909.

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N. n. c. THE "0km: PETERS C0,. wasmuam UNITE STATE ATENT @FFIQE.

JOHN ROBERT HARRISON, OF BALLARAT, VICTORIA, AUSTRALIA, ASSIGNOR OFONE-HALF TO HUGH VICTOR MCKAY, OF MELBOURNE, AUSTRALIA.

AMALGAMATOB AND GONCENTRATQE FOR ORE 1S AND TAIL-INGS.

Specification of Letters Patent. Patented J an. 12,.1909.

Application filed May 9, 1906. Serial No. 315,965.

the internal gutter or race B, which, at its I lowermost end, isprovided with a discharge i opening B c is a rim on inner edge of panstretching from free end to the gutter B. The surface of saidvolute-shaped pan or table A takes a helical course, that is to say,starting from the discharge end A for the saved mineral the surfacegradually rises until its radial end beyond a feed hopper A standshigher than the surface at the discharge radial end, or in other wordsthere is a step of some inches between the terminals at the feed anddischarge surface of the table. Said incline surface gradually decreasesin fall towards the discharge and narrower end A of the volute surface,while for some classes of ore the table is adjusted to have a veryslight upward incline at its discharge end.

T 0 all whom it may concern:

Be it known that I, J OHN ROBERT HARRI- soN, a subject of the King ofGreat Britain and Ireland, residing at No. 47 Albert street, Ballarat,in the British State of Victoria, Australia, iron founder, have inventedan l Improved Amalgamator and Concentrator for Ores and Tailings, ofwhich the following is a specification.

This invention relates to an improved amalgamator and concentrator forores and tailings.

It consists of a table or annular pan, whose surface is of a taperingvolute form in plan, provided with an internal gutter or race to receiveand carry off the gangue. The said table surface is slightly inclineddownwards transversely from its inner edge to its outer rim or peripheryand also inclines downwards circumferentially from its feed end to itsdis- The pan or table A is connected by three charge end, further thetable is suspended radial arms C to a central boss 0. The pan or table Ais suspended by three or more chains D carried by adjustable screwedhooks (1 supported on rubber washers d seated in sockets d formed inarms D projecting from a suitable central pillar E which is firmlysecured upon a gear bracket E the bottom part of which is in the form ofa stool E said gear bracket E has bearings for horizontal drive shaft Fupon which are fast and loose belt pulleys F and a bevel wheel F whichgears with a bevel pinion F on the upper end of a vertical shaft Fsupported in a bearing F carried by said stool E while secured upon thelower end of said vertical shaft F is a flanged collar G which supportsan adjustable eccentric G which passes into a bearing C formed in thecentral boss C located and secured at the center of the arms of the panor table A, and it is by the said eccentric disk G having a throw ofabout seven-sixteenths of an inch or thereabouts and rotating at abouttwo hundred revolutions per minute that the gyratory or eccentricshaking motion is imparted to the table A, as it swings upon its chainor flexible suspensories D. Said eccentric G is so secured to theflanged collar G that its throw can be adjusted by means of such asbolts 0 passing through slots 0 in the eccentric G and through thecollar G which is secured to the lower end of vertical shaft F".

If so desired the eccentric may from overhead supports and has agyratory I or eccentric shaking motion imparted to it by a horizontaleccentric which works in a boss at the center of pan arms, also for someclasses of ore and especially rich ore two or more pans may be supportedone above the other.

The invention will now be fully described aided by a reference to theaccompanying sheet of drawings in which Figure 1 shows a sectionalelevation of the machine taken on line a a of Fig. 2. Fig. 2 a plan ofthe machine, Fig. 3 is a detail plan of the central part of pan armsshowing the eccentric for imparting motion to the table or annular pan,and Fig. 4 a view of discharge end of pan, while Fig. 5 is a centralsectional view of part of the machine when two pans are employed. Fig. 6a detail view of the end parts of the feed and discharge ends of pans,and Fig. 7 a detail plan showing the arrangements of riffles. Figs. 8, 9and 10 are details of the discharge end of the table showing the slidinghopper and means for adjusting the height of the discharge end. Fig. 11is a detail view showing the means provided for the radial or transverseadjustment of the table.

The annular pan or table A is made with an outer upstanding rim A whileits inner edge is for the most part flush with top of table to allow thegangue to be discharged to be of the ball type that is it may have aspherical working surface'which 'willfadmitof the free. swaying of thepan.

The bearing C may be made in the form of. an open top dish in. orderthat the eccentric G may work in an oil or other lubricant, also thebearings. for the drive shaft. F may be of the adjustable type supportedon side center pins, further the hook bolts cl of the suspending chainsD can be, as. shown, fur: nished with adjusting nuts.

The volute shaped table surface A may be constructed in four or'moresegmental sections; each in one casting or it may be made of sheet metalwith the rims and gutter secured to it,' while the whole of said voluteshaped surface and rim A is covered with amalgamated copper plate, andfurther it may have curved amalgamated rifiles' ct on a portion of itssurface."

' "The ore or material to be treated is fed to the table in a finelypulverized and fluid state through the'hopper A at the high and widestend of the annular v'ol'ute shaped pan or' table A, said hopper A beingperforated on its bottom and throu h which latter the materials pass tothe tab e curved water spray'pipe H is provided to play upon thematerial as it reaches the eX- tremeouter edge of the last quarteroftable A, the direction andquantity' "of such feed water beingcap'able ofadjustment, and when necessary other perforated jet pipes can bearranged at suitable positions to play on the material on table A. Feedwater pipes H 'I-I are provided for the feed hopper A and thesemi-circular trough K respectively.

At the discharge end of the table A is a sliding ho]pper I'which isprovided with a partition One half ofsaid hopper Ireceives thevaluablemineral'whieh has been collected at or near the'rim A while'the otherhalf receives 'the'seconds or material of less specific'gravity andwhichfiows over the inner surface of the discharge part A and whichmaterial canagain be put through the machine. It will be noted that theinner side of discharge end 'A 'isfiared to allow freedom for theseconds overflowingto the hopper I. As shown in Figs. 8, 9 and 10the'sliding hopper I is supported on a bracket or lug g which is securedtothe end' of the gutter B, by bolts and said hopper I is held in thedesired position by a spring I which is'carried on a lug st projectingup from the said bracket g To adjust the position of hopper I the nut ofbolt in lu as holding the spring I is slackened and t e tension onhopper I is thus'reduced so that it can be moved transversely to thedischarge end of table. The hopper is provided at each end with spouts Jand J, the valuable material to a collecting hopper J while the spout Jleads the seconds to said semi-circular trough from which the I and agutter connected to 5 form from end. the spout J carrying a material isagain. delivered, on to the table A by means. of a, tyrnpanuni elevatorK which is driven by a worm gear L, receiving motion from the main driveshaft, F'by means of belt pulleys f and f Said tympanum elevator hasthree semi-circular tubular arms 7r through which the seconds pass to ahollow boss and from which they are delivered to table by the taperingchute k When the two pans are arranged one above another, as shown inFig. 5, the upper pan is earried from the lower pan by three or morebrackets as A, while a chute A is provided between the discharge end ofthe upper pan and the feed end of the lower pan or the chute A may bedispensed with and the seconds only be returned from the upper pan tothe lower pan so that the supply to each pan or table may be divided inplace of feeding all the material to one pan and from thence to theother.

To adjust the height of the discharge end of table A A, a bar 9 issecured to the underside of same, and said bar projects out beyond theinner edge of the table and is furnished at its outer end with a setscrew 9 which is screwed into the fixed bracket 9 se- "cured by bolts togutter B and which supports the sliding hopper I and by screwing thesaid set screw 9 up or down the discharge end of table may be raised orlowered. To adjust the table bed set screws h are arranged to passthrough the radial arms 0 and bear against lugs 7& formed on the gutterB.

To adjust the radial incline of the table A from its outer rim A to thegutter B a series of angle bars 6 are secured to the underside of tableA, and are connected by screwed adjusting rods -e which pass throughlugs 6 formed both on the underside of gutter B and on the'lower edge'ofinternal rib a said rods e being provided with adjusting nuts e seeFig.1 1. The height of the head or widest portion of the table A isadjusted by means of a bolt passing through a slotted bracket A secured'to the radial arm C said bolt being screwed into the end of table.

Having now described my invention what I claim as new and desire tosecure by Letters Patent is:

1'. A concentrator and amalgamator com prising a pan Volute shape inplan and having a somewhat flat fall helically which gradually decreasesfrom its feed to its discharge end the inner edge of the said pan, saidgutter extending from the discharge end to a point intermediate the endsof the pan and said pan being of channel 2. An amalgamator orconcentrator comprising a panfof volute shape in plan and having a fallhelically from its feed to its discharge end, a gutter connected to theinner the end of the gutter to the feed underside of the' edge of thepan, means for adjusting the height of the feed end in relation to thedischarge end of the pan and means for raising or lowering the outeredge of the pan in relation to the inner edge thereof.

3. An amalgamator or concentrator comprising a pan of Volute shape inplan and having a fall helically from the feed to the discharge ends,means for adjusting the height of the feed end in relation to the discharge end, adjustable means for inclining the pan radially, flexiblesuspending means for said pan and means for giving said pan a gyratoryor eccentric motion.

4. In a concentrator and amalgamator comprising a pan of volute shape inplan and having a fall spirally from its feed to its discharge end, agutter connected to the inner edge of said pan and means for adjustingthe height of the discharge end of the pan in relation to the end of thegutter.

In testimony whereof I have signed my name to this specification in thepresence of tWo subscribing Witnesses.

JOHN ROBERT HARRISON.

Witnesses:

BEDLINGTON BODYCOURT, W. J. S. THOMPSON.

